~/dnsniffer/issuers/shenzhen-yamu-security-technology-co·rank #215
$ dnsniffer count --issuer shenzhen-yamu-security-technology-co --active
▸ How many domains does Shenzhen Yamu Security Technology Co secure?
1
active domains whose current TLS certificate was issued by Shenzhen Yamu Security Technology Co, as of — 0.00% of all attributed domains.
# rank #215 of all CAs# all records held: 1# subdomains: 0# intermediates: 1# China
~/issuers/shenzhen-yamu-security-technology-co/history·active domains
1
domains secured by Shenzhen Yamu Security Technology Co on 2026-08-31 · ▲ +0 (+0.00%) since 2025-09-30
# y-axis starts at 0, not zero — domain counts move by fractions of a percent a day. Dashed segments are estimated: reconstructed from certificate first-seen dates before daily snapshots began, not measured on the day.
# change over time
30 days
▲ +0.00%
+0 domains
90 days
▲ +0.00%
+0 domains
1 year
—
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| HTTPS Automation Research RSA DV SSL CA G1 | China | 1 |
# faq
- ? How many domains does Shenzhen Yamu Security Technology Co secure?
- Shenzhen Yamu Security Technology Co is the certificate authority for 1 active domains as of August 31, 2026 — 0.00% of every domain DNSniffer can attribute to an issuer.
- ? Is Shenzhen Yamu Security Technology Co gaining or losing market share?
- We do not yet hold a full year of history for Shenzhen Yamu Security Technology Co. The chart above shows everything we have recorded so far.
- ? Which intermediate CAs does Shenzhen Yamu Security Technology Co sign from?
- We have seen 1 intermediate under Shenzhen Yamu Security Technology Co, the busiest being “HTTPS Automation Research RSA DV SSL CA G1” with 1 domains. The full list, with per-intermediate counts, is on this page.
- ? Where does this number come from?
- DNSniffer ingests Certificate Transparency logs continuously and records the issuer of the most recent certificate seen for each domain, then snapshots the per-issuer count once a day. It measures how much of the live web a CA currently secures, not how many certificates it has issued over its lifetime.